USPTO Patents Application 10537760

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PATENT ABSTRACTS OF JAPAN

(1 1 )Publication number : 07-303895
(43)Date of publication of application : 21.11.1995

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(21) Application number : 06-100319

(22) Date of filing : 16.05.1994

(71) Applicant : KUBOTA CORP

(72) lnventor : NEDACHI OSAMU

(54) WATER TREATMENT APPARATUS

(57)Abstract:

PURPOSE: To provide a water treatment apparatus having simple
constitution capable of performing the biological treatment and solid-
liquid separation of water to be treated.

CONSTITUTION: To a submerged reaction tank 1 having descending
and ascending passages 2, 3 allowing water to be treated to circulate
and flow formed thereto and provided with an aeration means such as
an ejector 9 supplying aeration air to the water to be treated falling
through the descending passage 2, the immersion type membrane
separator 10 positioned in the ascending passage 3 and subjecting
the water to be treated to solid-liquid separation is provided.

LEGAL STATUS

[Date of request for examination] 09.02. 1 998

[Date of sending the examiner's decision of rejection] 07.1 1 .2000

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[Kind of final disposal of application other than the

examiner's decision of rejection or application

converted registration]

[Date of final disposal for application]

[Patent numfc)er]

[Date of registration]

[Number of appeal against examiner's decision of
rejection]

[Date of requesting appeal against examiner's
decision of rejection]
[Date of extinction of right]

Copyright (C); 1998.2003 Japan Patent Office

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